Posted by M.A. on Friday, August 21, 2009 at 5:49am.
the volume of the first hole is 2x2x2 or 8 cubic feet
so his rate is 9 cubic feet/hour
the second hole is 4x4x4 or 64 cubic feet.
so if he can dig 8 cubic feet in 1 hour, how many hours do you think it would take him to dig 64 cubic feet?
I am confused.
You said in your first statement that his rate is 9 cubic feet/hour. But you also state that he can dig 8 cubic feet in 1 hour.
I am assuming that if he can dig 8 cubic feet in 1 hour that it would take him 8 hours to dig 64 cubic feet. (64 cu. ft divided by 8 cu. ft.) Correct?
clearly a typo,
yes, you are right, it would take 8 hours.
Thank you Dr. Reiny.
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